著者
佐藤 晃矢 岡 瑞起 橋本 康弘 加藤 和彦
出版者
The Japanese Society for Artificial Intelligence
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.30, no.5, pp.667-674, 2015

Social Tagging System (STS) which is one of the content management techniques is widely adopted in the online content sharing service. Using STS, users can give any strings (tags) to contents as annotations. It is important to know the usage of tag statistics for accomplishing an effective database design and the information navigation. The frequency of tag usage as well as their dynamics are similar to the ones found in the natural language. It is possible to reproduce the branching process of the tag dynamics using a classical model called Yule-Simon process. Another characteristic aspect of tags is the tag co-occurrence generated from the simultaneous use of tags. Using the tag co-occurrence, STS is able to reconstitute the hierarchy of tags, and recommend the tag which is probably used next. However, Yule-Simon process does not consider the tag co-occurrence and thus how the tag co-occurrence is generated from the model like Yule-Simon has not been addressed yet. In this paper, we propose to expand the Yule-Simon process to model the tag co-occurrence. From the point of view of network hierarchy, we confirm the similarity in the structure of the tag co-occurrence with the empirical data obtained from a social network service called 'RoomClip'. The present result suggested that this simple model like extended Yule-Simon process generates the tag co-occurrence feature.
著者
橋本 康弘 佐藤 晃矢 岡 瑞起 池上 高志
出版者
人工知能学会
雑誌
人工知能学会全国大会論文集 (ISSN:13479881)
巻号頁・発行日
vol.31, 2017

ソーシャルタギングシステムでは用いられたタグ(語彙)の使用数の増加が速いものから遅いものまで様々である。しかし、そのおおよその振る舞いは古典的な確率過程であるSimon過程でうまく記述できる。いま、この予測値からの逸脱をその語彙の「個性」と考えるならば、それはどのような性質を持つのか。どこに個性の起源を求めることができるのか。これらを議論する。
著者
佐藤 晃洋
出版者
国文学研究資料館
雑誌
国文学研究資料館紀要 = The Bulletin of National Institure of Japanese Literature Archival Studies (ISSN:18802249)
巻号頁・発行日
no.12, pp.135-147, 2016-03-14

本稿では、現在まで調査されたバチカン図書館所蔵マリオ・マレガ神父収集文書を中心として、臼杵藩を例に近世豊後におけるキリシタン禁制政策の展開について検討した。臼杵藩のキリシタン禁制政策は、当初、キリシタン一人一人を改宗させることをめざしていた。表面上キリシタンがいない状況になった寛永12年(1635)、改宗した者を名子・下人なども含む「いえ」単位で把握し監視する体制を作っている。正保3年(1646)、改宗した者が改宗する前に生まれた子ども等も監視の対象者に加え、各村の地縁的な繋がりを断ちきって改宗した者を散らばらせ五人組を編成することにより、監視体制の強化を図った。延宝5年(1677)以降は隔年で長崎奉行所から踏絵を借用し絵踏を実施し、元禄元年(1688)からは絵踏を毎年実施としている。貞享4年(1687)には「類族」も監視対象とされ、臼杵藩のキリシタン禁制政策は確立した。この政策は明治4年(1871)まで継続しているが、19世紀になると、宗門改が民衆統制のための年中行事となり、「家内帳」等による民衆把握に重点が置かれるようになっていった。This paper examines the development of anti-Christian policies in the Bungo region in the early modern period. This will be done by taking the Usuki domain as a case study mainly on the basis of the documents in the Vatican Library’s Marega Collection already surveyed.Initially, the Usuki domain’s policy was to have Christians change their religious affiliation one by one. At least on the surface by the year 1635 (Kan’ei 12) no Christians had remained, and at this stage a system for pinning down all the “converts” and monitoring them by household units (including serfs and subordinates of different kinds) was created. In 1646 (Shoho 3) this surveillance system was further strengthened: children born before their parents conversion and others were also subject to monitoring, and were organized Five-household Groups (goningumi) that held collective responsibility to avoid a concentration of “converts” and ensure that the territorial bonds within villages were severed.After 1677 (Enpō 5) every other year copper-plated “images to be trampled on” or fumi-e were borrowed from the Nagasaki magistrate to carry out an allegiance test, and from 1688, the first year of the Genroku period, a “trampling on images” (e-fumi ) was held annually. In 1687 (Jōkyō 4) the anti-Christian policy in the Usuki domain took his definitive form, by also including descendants of former Christians, known as “cognates” (ruizoku), as objects of surveillance. This system continued to be enforced until 1871, but in the 19th century the Verification of Religious Affiliation” (shūmon aratame) became an annual event for social control, and the emphasis was rather placed on having a firm grasp of local society and its membership through such documents as the kanai-chō, or Family Register.
著者
佐藤 晃矢 岡 瑞起 橋本 康弘 加藤 和彦
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.30, no.5, pp.667-674, 2015-09-01 (Released:2015-08-27)
参考文献数
19

Social Tagging System (STS) which is one of the content management techniques is widely adopted in the online content sharing service. Using STS, users can give any strings (tags) to contents as annotations. It is important to know the usage of tag statistics for accomplishing an effective database design and the information navigation. The frequency of tag usage as well as their dynamics are similar to the ones found in the natural language. It is possible to reproduce the branching process of the tag dynamics using a classical model called Yule-Simon process. Another characteristic aspect of tags is the tag co-occurrence generated from the simultaneous use of tags. Using the tag co-occurrence, STS is able to reconstitute the hierarchy of tags, and recommend the tag which is probably used next. However, Yule-Simon process does not consider the tag co-occurrence and thus how the tag co-occurrence is generated from the model like Yule-Simon has not been addressed yet. In this paper, we propose to expand the Yule-Simon process to model the tag co-occurrence. From the point of view of network hierarchy, we confirm the similarity in the structure of the tag co-occurrence with the empirical data obtained from a social network service called ‘RoomClip’. The present result suggested that this simple model like extended Yule-Simon process generates the tag co-occurrence feature.
著者
尾原 祐三 大谷 順 椋木 俊文 佐藤 晃 山田 文彦 麻植 久史
出版者
熊本大学
雑誌
基盤研究(A)
巻号頁・発行日
2011-04-01

この10年間であまり行われていないX線CTを用いた非破壊試験と最近の地球資源システム工学と地盤環境システム工学の管球課題で重要な解明すべき課題に対し,基本的試験法および測定法の高機能化に焦点を絞り研究を実施した。例えば,破壊靱性の荷重負荷速度依存性,寸法効果を評価するとともに,X線CTによるき裂の可視化により破壊靱性の粒子配列依存性を明らかにした。また,ベントナイトやアスファルトを含む地盤材料を対象とした移流拡散・分散試験により,および裁荷試験により,空隙内部での水や塩の流動特性を明らかにするとともに,物質のマトリクストラップ現象の定量化に成功した。
著者
佐藤 晃
出版者
久留米大学
雑誌
若手研究(B)
巻号頁・発行日
2007

Z住民検診で得られた1261名分の頚動脈内膜中膜厚(IMT)およびレムナントリポ蛋白コレステロール(RLP-C)の測定値をもとに、追跡調査と解析を行った。IMTの変化率(follow up IMT/baseline IMT×100)がどのような身体変量と相関があるか、多変量解析にて検討を行った結果、年齢、性で補正したbaseline IMTはRLP-Cと正の相関が認められた(P=0.0121)。しかし年齢、性、baseline IMTで補正したIMT変化率は、RLP-Cと有意な正の相関は認められなかった(P=0.7497)が、LDL-C/HDL-C比と有意な正の相関(P=0.0163)が認められた。